A is B's father. C is B's mother. D is C's Son. E is A's mother. Then how is A related to D?
Options
AGrandson
BUncle
CGranddaughter
DFather
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Blood RelationsMCQPYQ Sep 24Question 2478 of 195
All Questions Correct Answer
✅ Option d — Father
All Options:
- AGrandson
- BUncle
- CGranddaughter
- DFather
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Detailed Solution & Explanation
Let us systematically analyze the given relationships to establish the connection between A and D.
1. **"A is B's father."**
This implies that A is male and B is A's child. We can represent this as: A (Father) ← B (Child). 2. **"C is B's mother."**
This implies that C is female and B is C's child. Since A is B's father and C is B's mother, A and C must be married to each other. We can update our understanding: A (Father) --(married)-- C (Mother) are parents of B. 3. **"D is C's Son."**
This implies that D is male and C is D's mother. From step 2, we know C is married to A. If C is D's mother and A is C's husband, then A must be D's father. Therefore, A and C are the parents of both B and D. B and D are siblings. 4. **"E is A's mother."**
This implies that E is female and A is E's son. This information establishes a generation above A but is not directly required to determine the relationship between A and D. Now, we need to determine how A is related to D. From step 3, we established that A is D's father. Let's evaluate the given options: (A) Grandson: This would mean D is A's grandfather, which is incorrect. (B) Uncle: This would mean A is a brother of one of D's parents, which is incorrect as A is D's direct parent. (C) Granddaughter: This would mean D is A's grandmother, and A is male, which is incorrect. (D) Father: This aligns perfectly with our derivation that A is D's father. Therefore, the correct choice is **Option D**.
This implies that A is male and B is A's child. We can represent this as: A (Father) ← B (Child). 2. **"C is B's mother."**
This implies that C is female and B is C's child. Since A is B's father and C is B's mother, A and C must be married to each other. We can update our understanding: A (Father) --(married)-- C (Mother) are parents of B. 3. **"D is C's Son."**
This implies that D is male and C is D's mother. From step 2, we know C is married to A. If C is D's mother and A is C's husband, then A must be D's father. Therefore, A and C are the parents of both B and D. B and D are siblings. 4. **"E is A's mother."**
This implies that E is female and A is E's son. This information establishes a generation above A but is not directly required to determine the relationship between A and D. Now, we need to determine how A is related to D. From step 3, we established that A is D's father. Let's evaluate the given options: (A) Grandson: This would mean D is A's grandfather, which is incorrect. (B) Uncle: This would mean A is a brother of one of D's parents, which is incorrect as A is D's direct parent. (C) Granddaughter: This would mean D is A's grandmother, and A is male, which is incorrect. (D) Father: This aligns perfectly with our derivation that A is D's father. Therefore, the correct choice is **Option D**.
About This Chapter: Blood Relations
Paper
Paper 3: Quantitative Aptitude
Weightage
5 Marks
Key Topics
Blood Relations
This chapter covers Blood Relations and is part of Paper 3: Quantitative Aptitude in the CA Foundation exam.
View Official ICAI SyllabusExam Strategy Tip
This topic carries 5 Marks weightage. Focus on understanding core concepts rather than memorizing.
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